this is a foolish question,and there always are three answers.first one is that save father,because he give birth to you and bring you up.second one save girlfriend,on the grounds that she's the one who will accompany you all your life.the third answer is that save the one near you,if there is time left,save the other.
in acture fact,both of them mean a lot to us!and we cannot life without both of them.